Hoshizaki MWH KM-515MAH ユーザーズマニュアル
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2. Float Switch Cleaning
Depending on local water conditions, scale may build up on FS. Scale on the switch can
cause the float to stick. In this case, FS should be cleaned.
cause the float to stick. In this case, FS should be cleaned.
1) Turn off the power supply.
2) Remove the front panel, then move the control switch to the "OFF" position.
3) Remove the base cover, then disconnect one end of the pump tubing to drain the water
2) Remove the front panel, then move the control switch to the "OFF" position.
3) Remove the base cover, then disconnect one end of the pump tubing to drain the water
tank. See Fig. 3. After the water tank has drained, reconnect the pump tubing.
4) Disconnect the vent tube and the flush tube from the top of FS, then remove FS
assembly and remove the rubber boot from the bottom of FS assembly. See Fig. 4.
5) Remove the retainer rod from the bottom of FS housing, then remove the float. Be
careful not to bend the retainer rod excessively when removing it.
6) Wipe down FS housing, shaft, float, and retainer rod with a mixture of 1 part Hoshizaki
"Scale Away" and 25 parts warm water. Clean the inside of the rubber boot and hose
with cleaning solution. Rinse the parts thoroughly with clean water.
with cleaning solution. Rinse the parts thoroughly with clean water.
7) Reassemble FS assembly and replace it and the rubber boot in their correct positions.
Reconnect the vent tube and the flush tube.
8) Replace the base cover in its correct position.
9) Move the control switch to the "ICE" position.
9) Move the control switch to the "ICE" position.
10) Replace the front panel in its correct position.
11) Turn on the power supply to start the automatic icemaking process.
11) Turn on the power supply to start the automatic icemaking process.
Legend:
CB–control board; FS–float switch
Fig. 4
Float
Float Switch
Housing
Housing
Rubber Boot
and Hose
and Hose
Retainer Rod
Flush
Vent
Shaft